EP3392385A1 - Verfahren zur herstellung von nadelwänden einer rundstrickmaschine - Google Patents

Verfahren zur herstellung von nadelwänden einer rundstrickmaschine Download PDF

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Publication number
EP3392385A1
EP3392385A1 EP18167081.1A EP18167081A EP3392385A1 EP 3392385 A1 EP3392385 A1 EP 3392385A1 EP 18167081 A EP18167081 A EP 18167081A EP 3392385 A1 EP3392385 A1 EP 3392385A1
Authority
EP
European Patent Office
Prior art keywords
datum plane
bed body
needle bed
needle
slot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18167081.1A
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English (en)
French (fr)
Other versions
EP3392385C0 (de
EP3392385B1 (de
Inventor
Ku-Ching Hou
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Individual
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Individual
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Publication date
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Application granted granted Critical
Publication of EP3392385C0 publication Critical patent/EP3392385C0/de
Publication of EP3392385B1 publication Critical patent/EP3392385B1/de
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/14—Needle cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/10—Needle beds

Definitions

  • the invention relates to circular knitting machines, particularly to manufacture of needle walls assembly of a circular knitting machine.
  • Circular knitting machines are equipment for mass-producing knitted fabric.
  • a currently existing circular knitting machine especially for a fine needle knitting machine with much more needles, has a needle bed (cylinder/dial/sinker ring) with needle guiding slots which has a large amount and tiny width, so the slots are hard to be formed and processed.
  • needle bed cylinder/dial/sinker ring
  • needle guiding slots which has a large amount and tiny width, so the slots are hard to be formed and processed.
  • roughly finished products have problems of insufficient accuracy, surface roughness or wear resistance because of subsequent processing (post-processing).
  • FIGS. 1-4 A typically conventional manufacturing method of needle walls assembly of a circular knitting machine machines a needle bed body 1a to form a required shape first. Then the needle bed body 1a is cut to form a plurality of slots 19a. A channel 16a over the needle bed body 1a is formed between two adjacent slots 19a. The bottom of the slot 19a serves as a joint datum plane 23a. Finally, the insertion sheets 2a are separately inserted into the slots 19a one by one.
  • the needle bed body 1a associated with the inserting sheets 2a is known as a needle wall.
  • the bottoms of the slots 19a are always deformed by the heat treatment. Even if the insertion sheets 2a are inserted very carefully, their non-grinding accuracy and an external size still greatly exceeds a required range of standard tolerance.
  • the conventional post-processing is to grind a plate such as an insertion sheet 2a to become a sheet with required accuracy and an external size and then use a polisher to perform deburring and/or polishing and sandblast grinding processes. Its target is to improve surface smoothness of the needle wall so as to reduce friction of actions of knitting needles.
  • the lathing tolerance of parallelism from point A to point B will be enlarged from original about 0.01mm to 0.1mm or even above 0.35mm because of heat treatment errors and inconsistence of thickness specification of the needle bed body 1a.
  • the bottom of the slot 10a is also deformed by the milling process.
  • the parallelism from point A2 to point B2 of the insertion sheet 2a also becomes 0.15mm or even above 0.5mm. This exceeds the specification standard (below 0.03mm) very much.
  • the conventional method reserves a deflection gradient between point A and point B during the lathing process so as to reduce interference of heat treatment and keep the parallelism between point A and point B to meet the specification standard after the heat treatment.
  • grind the top of the needle wall After assembling is finished, grind the top of the needle wall to make both the section between point A2 and point B2 and the section between point A and point B be a synchronization tolerance and to keep the height H1 of the slot to meet the specification standard.
  • An object of the invention is to provide a method for manufacturing needle walls assembly of a circular knitting machine, which can eliminate the machining processes such as grinding of precision and dimensions, deburring and polishing, etc. In addition, it can also reduce the resistance abrasion between needle walls and the knitting needles. The serve lifespan of the knitting needles and the needle walls can be lengthened, and the machine knitting speed can be increased so as to improve the productivity.
  • the invention provides a method for manufacturing needle walls assembly of circular knitting machine, which includes the steps of:
  • the invention provides a method for manufacturing needle walls assembly of circular knitting machine, which includes the steps as follows.
  • the needle bed body 1 is provided with slots 19 at predetermined positions at regular intervals and a channel 16 is formed between two adjacent slots 19.
  • the needle bed body 1 is introduced with a heat treatment deformation coefficient to reserve a correctable size range of a first datum plane 15 for knitting needles and a second datum plane 17 for needle walls. That is, the second datum plane 17 may be disposed on a platform 18 of the needle bed body 1.
  • the platform 18 protrudes from the needle bed body 1 to form a step shape.
  • the bottom 13 of the slot 19 is milled to exceed a range of the heat treatment deformation coefficient to guarantee a first portion 21 of the insertion sheet 2 corresponding to the first datum plane 15 and a second portion 22 of the insertion sheet 2 corresponding to the second datum plane 17 to be able to firmly be attached on the first datum plane 15 and the second datum plane 17, respectively.
  • the insertion sheet 2 is formed by punch machining.
  • the insertion sheet 2 has a first portion 21 at an end (front end) thereof, a second portion 22 at another end (rear end) thereof and a third portion 23 between the first portion 21 and the second portion 22.
  • the bottoms of the first portion 21 and the second portion 22 may be flat planes or curved surfaces.
  • the bottom of the second portion 22 is lower than the bottom of the first portion 21 in level height.
  • the bottom of the third portion 23 may be a flat plane or curved surface.
  • the first portion 21 and the second portion 22 correspond to the first datum plane 15 and the second datum plane 17, respectively. It should be noted that the first portion 21 and the second portion 22 and non-grinding accuracy and an external size 14 of the insertion sheet 2 have to be controlled within a tolerance range.
  • a width of the gap 25 is above 0.1mm.
  • section between points A and B is a datum plane of excluding deformation interference of the invention. Because section between point B and the second datum plane 17 is a dropping step, its step height will not be affected by heat deformation. As a result, the second datum plane 17 is a datum plane of excluding deformation interference of the invention. In addition, height H3 of the first portion 21 of the insertion sheet 2 is fixed when forming.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Knitting Machines (AREA)
EP18167081.1A 2016-08-01 2018-04-12 Verfahren zur herstellung von nadelwänden einer rundstrickmaschine Active EP3392385B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW105124271 2016-08-01
TW106112673A TWI639742B (zh) 2016-08-01 2017-04-14 圓編織機針板總成的製造方法

Publications (3)

Publication Number Publication Date
EP3392385A1 true EP3392385A1 (de) 2018-10-24
EP3392385C0 EP3392385C0 (de) 2023-06-28
EP3392385B1 EP3392385B1 (de) 2023-06-28

Family

ID=62014018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18167081.1A Active EP3392385B1 (de) 2016-08-01 2018-04-12 Verfahren zur herstellung von nadelwänden einer rundstrickmaschine

Country Status (5)

Country Link
EP (1) EP3392385B1 (de)
JP (1) JP6772212B2 (de)
KR (1) KR101957227B1 (de)
CN (1) CN108723703B (de)
TW (1) TWI639742B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110653567A (zh) * 2019-09-30 2020-01-07 浙江百信针织机械有限公司 一种电脑横机针板的制作工艺及电脑横机针板
CN111644812B (zh) * 2020-05-28 2021-09-28 福建省永宏针纺机械有限公司 一种大圆机针筒制造工艺及其设备
CN111660066B (zh) * 2020-05-28 2021-11-09 福建省永宏针纺机械有限公司 一种高精密针织大圆机针筒成型方法及成型设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1850817A (en) * 1930-12-16 1932-03-22 Scott & Williams Inc Knitting machine cylinder
DE1171105B (de) * 1962-06-09 1964-05-27 Schubert & Salzer Maschinen Zylinder, Platinenring oder Rippscheibe fuer Rundstrickmaschinen
US3817058A (en) * 1971-09-22 1974-06-18 V Lombardi Cylinder and dial construction for knitting machines
WO2015104618A1 (en) * 2014-01-07 2015-07-16 Santoni S.P.A. Needle cylinder for a circular knitting machine

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB361321A (en) * 1930-08-15 1931-11-16 George Henry Green Improvements in or relating to supports or guides for sliding members in knitting machines
FR742234A (de) * 1932-02-17 1933-03-02
US3667113A (en) * 1970-04-17 1972-06-06 Morris Philip A knitting machine needle bed
JPS4915248U (de) * 1972-05-13 1974-02-08
JPS50121549A (de) * 1974-03-18 1975-09-23
JP2000073263A (ja) * 1998-08-24 2000-03-07 Fukuhara Needle Kk 編機械用打ち抜き部品
KR200213408Y1 (ko) * 2000-08-28 2001-02-15 이종학 양말 편직기용 니들 실린더의 구조
TW507789U (en) * 2001-02-07 2002-10-21 Pai Lung Machinery Mill Co Ltd Structure of insert of upper dial for circular knitting machine
KR100529026B1 (ko) * 2002-02-18 2005-11-16 김진수 양말편직기용 니들 실린더의 통살
JP4977580B2 (ja) * 2007-11-02 2012-07-18 株式会社島精機製作所 横編機
EP2067885B1 (de) * 2007-12-08 2011-07-20 Groz-Beckert KG Nadelbett mit Fluidkanälen
CN102528383A (zh) * 2010-12-15 2012-07-04 常熟市宏达印染机械有限公司 一种针板的加工工艺
KR101218120B1 (ko) * 2011-07-28 2013-01-03 삼에스기계(주) 환편기용 실린더의 통살구조
CN202644083U (zh) * 2012-06-08 2013-01-02 福建台帆实业有限公司 大圆机的针织总成改进结构
CN103334216A (zh) * 2013-07-24 2013-10-02 宁波慈星股份有限公司 一种电脑针织横机的针板组装工艺

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1850817A (en) * 1930-12-16 1932-03-22 Scott & Williams Inc Knitting machine cylinder
DE1171105B (de) * 1962-06-09 1964-05-27 Schubert & Salzer Maschinen Zylinder, Platinenring oder Rippscheibe fuer Rundstrickmaschinen
US3817058A (en) * 1971-09-22 1974-06-18 V Lombardi Cylinder and dial construction for knitting machines
WO2015104618A1 (en) * 2014-01-07 2015-07-16 Santoni S.P.A. Needle cylinder for a circular knitting machine

Also Published As

Publication number Publication date
TWI639742B (zh) 2018-11-01
EP3392385C0 (de) 2023-06-28
CN108723703B (zh) 2020-06-16
CN108723703A (zh) 2018-11-02
KR101957227B1 (ko) 2019-03-12
EP3392385B1 (de) 2023-06-28
TW201805499A (zh) 2018-02-16
JP6772212B2 (ja) 2020-10-21
JP2018178353A (ja) 2018-11-15

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